General

• Home
• Basic XPath demo
• Object Oriented XPath
• XML Schema for metadata interoperability
• An Application to a Rights Expression Language
• Implicit Query Transcoding
• Behind the Scenes

 

Implicit Query Transcoding

Our approach allows executing XPath queries over a RDF representation of data from some data model for which a mapping with XML has been defined. There is no need of a transcoding between the XPath query and the new data model, because the primitives of the two models (XML and for example the Relational Model) have been already mapped and the inference engine can resolve the query. The first textarea contains the relational data serialized with the Relational/RDF Syntax. The other textareas contain the Relational/RDF Syntax ontology and the mappings between the two sintaxes respectively.

Select an example none Relational Model. Books example 1 Relational Model. Books example 2 Relational Model. Books example 3

RDF representation of some non-XML data (relational, natural RDF, etc.)

OWL ontology of the invited data model

OWL mapping between XML and the invited data model

XPath query

Result